trap·​e·​zoid | \ ˈtra-pə-ˌzȯid How to pronounce trapezoid (audio) \

Definition of trapezoid

1a : a quadrilateral having only two sides parallel
b British : trapezium sense 1a
2 : a bone in the wrist at the base of the metacarpal of the index finger

Illustration of trapezoid

Illustration of trapezoid

trapezoid 1a

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Other Words from trapezoid

trapezoidal \ ˌtra-​pə-​ˈzȯi-​dᵊl How to pronounce trapezoidal (audio) \ adjective

Examples of trapezoid in a Sentence

Recent Examples on the Web The large blue trapezoid is the Severe Thunderstorm Watch issued by the National Weather Service Storm Prediction Center. Washington Post, "Loud, damaging and repeated storms deluged the D.C. area Monday night. Here’s how it happened.," 7 July 2020 Image Farmdale, a trapezoid of streets on the area’s eastern edge, between Vineyard Avenue and busy Crenshaw Boulevard, is particularly desirable for its large lots, wide streets with single- family homes and walkability. Abigail Stone, New York Times, "West Adams, Los Angeles: Prices Rise With the Neighborhood’s Popularity," 21 Apr. 2020 For the main building tiles, there are 30 triangular pieces, 30 squares, 2 trapezoids, 2 hexagons, and 4 long triangles. Popular Science, "Magnetic building toys for creative kids," 10 Feb. 2020 The vehicle, which represents a large metallic trapezoid, will start at $39,900. NBC News, "Tesla unveils its first electric pickup, the Cybertruck, starting at $39,900," 22 Nov. 2019 The state’s true shape gained attention Wednesday morning when Gov. Jared Polis posted on his Facebook page the year-old article that says the state looks more like an isosceles trapezoid than an actual rectangle. James Burky, The Denver Post, "Rectangle state? Nope. Colorado has 697 sides, not four.," 16 Oct. 2019 He was placed on the injured list with a right trapezoid strain Aug. 13. Los Angeles Times, "Gavin Lux will make his Dodgers debut Monday," 1 Sep. 2019 If that’s true, there’s little reason not to junk the left side of the trapezoid and do what the LIFT+ Act does: include everyone, regardless of earned income. Dylan Matthews, Vox, "Rashida Tlaib wants to give low-income adults $3,000 a year each, no questions asked," 12 June 2019 The credit looks a bit like a trapezoid: an upward-sloping line on the left, a plateau in the middle, and then a downward-sloping line on the right. Dylan Matthews, Vox, "Parenting can be a full-time job. Activists want the tax code to treat it that way.," 15 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'trapezoid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of trapezoid

circa 1706, in the meaning defined at sense 1b

History and Etymology for trapezoid

New Latin trapezoïdes, from Greek trapezoeidēs trapezium-shaped, from trapeza table

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Time Traveler for trapezoid

Time Traveler

The first known use of trapezoid was circa 1706

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Statistics for trapezoid

Cite this Entry

“Trapezoid.” Dictionary, Merriam-Webster, Accessed 23 Oct. 2020.

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More Definitions for trapezoid


How to pronounce trapezoid (audio)

English Language Learners Definition of trapezoid

US : a four-sided shape that has two sides that are parallel and two sides that are not parallel


trap·​e·​zoid | \ ˈtra-pə-ˌzȯid How to pronounce trapezoid (audio) \

Kids Definition of trapezoid

: a flat geometric figure with four sides but with only two sides parallel


trap·​e·​zoid | \ ˈtrap-ə-ˌzȯid How to pronounce trapezoid (audio) \

Medical Definition of trapezoid

: a bone in the distal row of the carpus at the base of the index finger

called also lesser multangular, trapezoid bone, trapezoideum

More from Merriam-Webster on trapezoid

Nglish: Translation of trapezoid for Spanish Speakers

Britannica English: Translation of trapezoid for Arabic Speakers

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